Heap-based Buffer Overflow Affecting glib2-doc package, versions <0:2.82.2-771.amzn2023


Severity

Recommended
0.0
high
0
10

Based on Amazon Linux security rating.

Threat Intelligence

EPSS
0.13% (4th percentile)

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  • Snyk IDSNYK-AMZN2023-GLIB2DOC-18531888
  • published5 Aug 2026
  • disclosed17 Jul 2026

Introduced: 17 Jul 2026

NewCVE-2026-16118  (opens in a new tab)
CWE-122  (opens in a new tab)

How to fix?

Upgrade Amazon-Linux:2023 glib2-doc to version 0:2.82.2-771.amzn2023 or higher.
This issue was patched in ALAS2023-2026-2028.

NVD Description

Note: Versions mentioned in the description apply only to the upstream glib2-doc package and not the glib2-doc package as distributed by Amazon-Linux. See How to fix? for Amazon-Linux:2023 relevant fixed versions and status.

A flaw was found in xdgmime. A heap-based buffer overflow can be triggered in _xdg_mime_magic_parse_magic_line() in the xdgmimemagic.c file on little-endian systems when an attacker-controlled MIME magic file in a user-writable XDG data location (e.g., in the $XDG_DATA_HOME/mime/magic path) is parsed by an application performing MIME type detection (e.g., via g_content_type_guess()). When performing byte-swap, incorrect pointer arithmetic on the write side causes an out-of-bounds write of 2 bytes, resulting in an application crash or memory corruption.

CVSS Base Scores

version 3.1